Bicycle paths and lanes shall be used exclusively for the operation of bicycles unless:

• Pedestrians want to use them.
• There is heavy traffic on the road.
• Signs allow joint use with pedestrians, or the driver is on official duty, like delivering mail.
  Explanation:

  "Bicycle paths and lanes are designated for the exclusive use of bicycles. However, exceptions are made in certain situations. These include when signs indicate that joint use with pedestrians is permitted or when a driver is on official duty, such as delivering mail. In these cases, non-bicyclists may use the path or lane."
• Bicyclists are not present on the path.